how can I measure boost, air mass and air-fue ratio

**Caveman_nige** · 15th January 2011, 20:02

guys is there a program i can buy for my laptop that will allow me to measure the boost pressure, air mass and the air to fuel ratio.. I know i can get them if i take the car to a rolling road but i want to be able to read/record the data live on a laptop.. I am not wanting to add gauges just for this, i have boost gauge although not fitted.

any ideas?

**bobssignum** · 15th January 2011, 20:13

Dont quote me on this nige but i think this is a feature on a tech 2 . give plasma a ring/pm he should be able to confirm or not

**signumturbo04** · 15th January 2011, 20:41

i'm 99% sure its on op-com too

**Aikon58** · 15th January 2011, 20:44

Originally Posted by signumturbo04

i'm 99% sure its on op-com too

Looked at mine today using that

**Caveman_nige** · 15th January 2011, 21:20

what, i can measure all those with opcom? i guess i need to have a closer look at it, not sure where i look to get those figures recorded while car is in motion though..

**lee gsi** · 15th January 2011, 21:23

Also you can buy a bluetooth ELM427 interface and get app's which will read all that sort of data (And G forces)

**rushy** · 15th January 2011, 21:49

I'm sure you can access a hidden menu on full can cars BC's that tells you all that info live. No need for opcom or Tech 2.

**Caveman_nige** · 15th January 2011, 21:59

now that sounds even better... my car is a chassis 5, will I have that option and if i do i don't suppose you could give me a tip as to where to access it please mate..?

**Aikon58** · 15th January 2011, 21:59

Originally Posted by Caveman_nige

what, i can measure all those with opcom? i guess i need to have a closer look at it, not sure where i look to get those figures recorded while car is in motion though..

Click on engine once you put your car details in.
Then measuring blocks i think it is.
I tried to do a regen in programming,but it wouldn't do it,but that could be because my laptop is old and only has usb 1.0 on it,so it can't read the info needed to do it quick enough

**zafira** · 15th January 2011, 22:04

Try search in op-com under:
-engine
-output test
You will find boost pressure here. Maybe air mass and air-fue also.
On boost pressure you can look at "boost pressure comand" and "boost pressure". Thise are show as kpa (100 kpa = 1 bar = 14,5 psi) You might adjust for barometric pressure. So if it shows 240 kpa, boost pressure are 240 kpa -100 kpa (barometric pressure) = 140 kpa/1,4 bar.